Pith Number

pith:7NF5CHTI

pith:2009:7NF5CHTIWNDHMB4UX4OXTTB7HC

not attested not anchored not stored refs pending

Graphene under hydrostatic pressure

Eugene Gregoryanz, John E. Proctor, Jonathan N. Coleman, Konstantin S. Novoselov, Matthew P. Halsall, Mustafa Lotya

arxiv:0905.3103 v2 · 2009-05-19 · cond-mat.mtrl-sci

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NF5CHTIWNDHMB4UX4OXTTB7HC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T15:49:09.394691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb4bd11e68b346760794bf1d79cc3f38b9394268ae03754f3fe074d958238bab

Aliases

arxiv: 0905.3103 · arxiv_version: 0905.3103v2 · doi: 10.48550/arxiv.0905.3103 · pith_short_12: 7NF5CHTIWNDH · pith_short_16: 7NF5CHTIWNDHMB4U · pith_short_8: 7NF5CHTI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: fb4bd11e68b346760794bf1d79cc3f38b9394268ae03754f3fe074d958238bab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6acf5d1d6a4cd1447a10ce6d4696a55679b1bed10570c212c768029306097d29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2009-05-19T13:29:44Z",
    "title_canon_sha256": "14fa24c42716bf262d29f7e4e4aa05ea4c90213e6e0eaf5243b5bfc364b588b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3103",
    "kind": "arxiv",
    "version": 2
  }
}